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Finding the Fourth Proportional to 335,763.40, 503,645.10 and 188,000.20

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Solution

The fourth proportional to 335,763.40, 503,645.10 and 188,000.20 is: 282,000.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    335,763.40 : 503,645.10 = 188,000.20 : x
  2. Step 2: Convert to fraction form
    335,763.40/503,645.10 = 188,000.20/x
  3. Step 3: Cross multiply
    335,763.40x = 503,645.10 × 188,000.20
  4. Step 4: Simplify right side
    335,763.40x = 94,685,379,529.02
  5. Step 5: Solve for x
    x = 94,685,379,529.02/335,763.40
  6. Step 6: Final answer
    x = 282,000.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.